What does Google say about SEO? /
Quick SEO Quiz

Test your SEO knowledge in 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions

Official statement

If an outgoing link makes sense for the user and is not related to a commercial relationship, it does not need to be wrapped in a nofollow. A normal link is sufficient.
4:52
🎥 Source video

Extracted from a Google Search Central video

⏱ 57:08 💬 EN 📅 14/06/2016 ✂ 14 statements
Watch on YouTube (4:52) →
Other statements from this video 13
  1. 1:09 Google indexe-t-il vraiment tout le JavaScript que vous lui servez ?
  2. 2:40 Comment optimiser son référencement maintenant que la métrique PageRank a disparu ?
  3. 5:54 Les redirections 301 font-elles vraiment perdre du PageRank ?
  4. 6:57 Après une pénalité de liens non naturels, pourquoi mon site peine-t-il à remonter dans les classements ?
  5. 8:29 Faut-il vraiment abandonner la stratégie du grand ratissage de mots-clés ?
  6. 10:25 Le maillage interne améliore-t-il vraiment le référencement ou juste l'expérience utilisateur ?
  7. 13:19 Les mots-clés dans les extensions de domaine influencent-ils vraiment le référencement ?
  8. 13:57 Pourquoi certains sites mettent-ils des mois à récupérer après une mise à jour Google ?
  9. 26:26 Google exploite-t-il vraiment le contenu de vos vidéos pour le référencement ?
  10. 30:58 Faut-il vraiment éviter de republier son contenu sur d'autres plateformes ?
  11. 34:59 La structure d'URL influence-t-elle réellement le flux de PageRank ?
  12. 37:33 Le texte caché dans les menus déroulants est-il pris en compte par Google ?
  13. 52:20 Les signaux sociaux influencent-ils réellement le classement Google ?
📅
Official statement from (9 years ago)
TL;DR

John Mueller clarifies: a natural, user-friendly outgoing link without a commercial counterpart does not need a nofollow attribute. Google views these links as legitimate and does not penalize the transfer of PageRank. Only sponsored, paid, or exchanged links need to be marked as nofollow or sponsored. This clarification prompts a reconsideration of systematic defensive practices that block all outgoing links.

What you need to understand

Why does Google allow outgoing links without nofollow?

Mueller's stance reflects a fundamental logic of the web: links form the very architecture of the Internet. Google built its empire on PageRank, an algorithm that analyzes the value transmitted between pages through hyperlinks.

Systematically blocking all outgoing links represents a defensive approach that indicates a misunderstanding of how the algorithm actually works. A relevant link to an external resource bolsters a page's editorial credibility in Google's eyes. It signals documentary quality, not an SEO juice leak.

What is the difference between editorial links and commercial links?

The distinction lies in the intention and compensation. An editorial link arises from a editorial decision: you cite a source, recommend a free tool, refer to a university study. No transaction, no service exchange, no negotiation.

A commercial link involves a business relationship: sponsored article, paid placement, visibility exchange, affiliate partnership. Google requires these links to carry the attribute rel="nofollow" or rel="sponsored" to prevent PageRank manipulation. The dividing line is clear: was there negotiation or compensation?

How does Google interpret a healthy outgoing link profile?

A site that never links outward sends a strange signal. Either it considers itself the only source of truth in its field (not very credible), or it applies an archaic SEO strategy of PageRank retention. Both scenarios trigger quality alerts.

Conversely, a site that cites its sources, links to authoritative references, and contextualizes its content with relevant links demonstrates a mature editorial approach. Google values this documentary transparency. The web is not a zero-sum game where every outgoing link impoverishes you.

  • Natural editorial link: no nofollow attribute needed, Google views it as a legitimate vote of confidence
  • Sponsored/paid link: nofollow or sponsored attribute mandatory under penalty of manual action
  • Balanced profile: mixing internal and external links enhances the overall editorial credibility of the site
  • Quality signal: citing authoritative sources in your niche improves perceived E-E-A-T
  • Real risk: blocking all outgoing links may be interpreted as manipulative behavior

SEO Expert opinion

Is this statement consistent with real-world observations?

Absolutely. Empirical tests show that a site with relevant outgoing links performs better on informational queries than a siloed site. Google needs to understand your knowledge graph: where you point reveals your thematic positioning.

However, the unspoken nuance concerns the volume and quality of destinations. Massively linking to low-authority or off-topic sites dilutes your thematic relevance. An editorial link is not free: it must serve user experience, not fill a disguised reciprocal linking strategy.

In what cases does this rule not apply?

Forums, UGC, and comments represent a gray area. Even if a user posts what they consider an "editorial" link, you have no control over its legitimacy. Google recommends nofollow by default on all user-generated content. Your editorial responsibility is engaged.

Widgets and footers are problematic as well. A "Powered by Agency X" link in the footer of 500 client sites is not editorial, even without a direct transaction. Google detects these sitewide link patterns and automatically downgrades them. It's better to anticipate with an explicit nofollow.

Warning: The line between editorial link and affiliate link remains blurry for many practitioners. An Amazon link with an affiliate tag IS commercial, even if you sincerely recommend the product. The sponsored attribute is necessary, period.

What gray areas still exist in this statement?

Mueller does not quantify the tolerance threshold. How many outgoing links per page before Google sees your content as merely aggregating? No data. [To be checked] empirically based on your niche and domain authority.

The question of reciprocal linking also remains undecided. Two sites mutually citing each other for legitimate editorial reasons do not violate any rules. But if this pattern repeats across 50 interlinked pages, Google smells organized exchange. Massive reciprocity triggers filters, even without a declared financial transaction.

Practical impact and recommendations

What should you actually do with your current outgoing links?

Audit your external link profile with Screaming Frog or Ahrefs Site Audit. Isolate all outgoing links and classify them: legitimate editorial, non-marked commercial, suspicious reciprocal, sitewide footers. The top priority: identify paid links without attributes that expose you to manual action.

For each detected commercial link, add rel="sponsored" (preferable to generic nofollow because it is more precise). For pure editorial links, leave them dofollow: that is their natural state. Don't over-optimize defensively.

What mistakes should you avoid in your outgoing link strategy?

Systematic nofollow on all external links remains the classic blunder. Some CMS even configure this behavior by default. Result: your site resembles an SEO bunker that refuses to participate in the web. Google interprets this signal as a lack of editorial generosity.

The opposite also exists: sites that distribute dofollow indiscriminately to dubious destinations. Every outgoing link is a micro-recommendation. Pointing to a penalized or spammy site associates your domain with that neighborhood. Selectivity is more important than quantity.

How can you ensure your site adheres to these best practices?

Set up a Search Console alert for manual actions related to unnatural links. Simultaneously, conduct quarterly audits of your outgoing backlink profile: an editorial link to a site that later becomes a link farm exposes you retroactively.

Document your internal editorial policy: who validates outgoing links, based on what criteria, and with what default attributes. This governance protects against UGC drift and poorly informed initiatives from occasional contributors. These optimizations of outgoing links, coupled with an overall linking and interlinking strategy, require a sharp technical expertise and constant monitoring of Google guidelines. If your team lacks resources or internal skills on these topics, working with a specialized SEO agency can secure your approach and avoid costly visibility errors.

  • Audit all current outgoing links and identify those with commercial counterparts
  • Add rel="sponsored" or rel="nofollow" only on paid, exchanged, or affiliate links
  • Keep natural dofollow for editorial citations, academic sources, and useful references
  • Remove the systematic nofollow configured by default in some CMS or plugins
  • Document a charter outlining the rules for attributing external links
  • Monitor the outgoing link profile quarterly to detect any toxic destinations
Mueller's position clarifies a practice often misunderstood: editorial outgoing links strengthen your credibility, they do not dilute your PageRank. Reserve nofollow for established commercial relationships, and allow your content to breathe with relevant external references. A site that cites its sources and contextualizes its expertise gains thematic authority and user satisfaction, two pillars of modern ranking.

❓ Frequently Asked Questions

Un lien affilié Amazon doit-il être en nofollow même si je recommande sincèrement le produit ?
Oui, absolument. Dès qu'il y a rémunération potentielle (commission d'affiliation), Google exige l'attribut sponsored ou nofollow. Votre sincérité éditoriale ne change rien à la nature commerciale du lien.
Combien de liens sortants par page peut-on mettre sans risque SEO ?
Il n'existe pas de limite chiffrée officielle. Google évalue la pertinence contextuelle et l'utilité pour l'utilisateur. Une page ressource avec 50 liens éditoriaux pertinents pose moins de problème qu'une page produit avec 5 liens hors-sujet.
Les liens réciproques entre deux sites sont-ils considérés comme manipulation ?
Non, si la réciprocité reste naturelle et limitée. Deux sites thématiquement proches qui se citent mutuellement pour raisons éditoriales ne violent aucune règle. C'est la réciprocité massive et organisée qui pose problème.
Faut-il mettre les liens vers Wikipedia en nofollow ?
Non, aucune raison. Wikipedia est une référence éditoriale légitime sans contrepartie commerciale. Un lien dofollow vers Wikipédia renforce même votre crédibilité documentaire.
Les liens dans les commentaires de blog doivent-ils toujours être en nofollow ?
Oui, par défaut. Les commentaires constituent du contenu généré par utilisateurs (UGC) que vous ne contrôlez pas éditorialement. Google recommande le nofollow systématique sur tous les liens UGC pour éviter le spam.
🏷 Related Topics
AI & SEO Links & Backlinks

🎥 From the same video 13

Other SEO insights extracted from this same Google Search Central video · duration 57 min · published on 14/06/2016

🎥 Watch the full video on YouTube →

Related statements

💬 Comments (0)

Be the first to comment.

2000 characters remaining
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.